Herbert, One small, unimportant and strictly cosmetic issue is left. Pybliographer doesn't write the year entry as:
year = {2002}, but year = 2002, Therefor, the parser interprets the year with the comma, so the choice displays "Voss (2002,)". If it is easy to strip this comma, it'd be cool, otherwise I can live with it. Regards, Juergen.